JP2001102011A - Packaging material for polymer battery and polymer battery using the packaging material - Google Patents
Packaging material for polymer battery and polymer battery using the packaging materialInfo
- Publication number
- JP2001102011A JP2001102011A JP27582799A JP27582799A JP2001102011A JP 2001102011 A JP2001102011 A JP 2001102011A JP 27582799 A JP27582799 A JP 27582799A JP 27582799 A JP27582799 A JP 27582799A JP 2001102011 A JP2001102011 A JP 2001102011A
- Authority
- JP
- Japan
- Prior art keywords
- packaging material
- layer
- aluminum foil
- polymer battery
- maleated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
(57)【要約】
【課題】 耐電解液特性、耐溶剤性をそなえ、ヒートシ
ール性、電極端子との接着性、密着性に優れるととも
に、生産効率が高く、大幅なコスト低減を達成したポリ
マー電池用包装材料および該包装材料を使用したポリマ
ー電池を提供する。
【解決手段】 ポリマー電池用包装材料は、アルミニウ
ム箔、マレイン化ＰＰ層および押出コートポリプロピレ
ン層の順で積層された複合アルミニウム箔からなり、複
合アルミニウム箔のアルミニウム箔面にさらに耐熱性二
軸延伸フィルム層を設けた包装材料で電解質を挟み、電
極板の両面にマレイン化ＰＰを被覆した電極端子をヒー
トシールすることによりポリマー電池を構成する。
PROBLEM TO BE SOLVED: To provide a polymer that has excellent resistance to electrolytes, resistance to solvents, excellent heat sealability, adhesion to electrode terminals and adhesion, high production efficiency, and significant cost reduction. Provided are a battery packaging material and a polymer battery using the packaging material. The packaging material for a polymer battery comprises a composite aluminum foil laminated in the order of an aluminum foil, a maleated PP layer and an extrusion-coated polypropylene layer, and further comprises a heat-resistant biaxially stretched film on the aluminum foil surface of the composite aluminum foil. A polymer battery is formed by sandwiching an electrolyte with a packaging material provided with a layer, and heat-sealing electrode terminals having maleated PP coated on both surfaces of an electrode plate.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ポリマー電池用包
装材料、詳しくは、複合アルミニウム箔からなるポリマ
ー電池用包装材料および該包装材料を使用したポリマー
電池に関する。The present invention relates to a packaging material for a polymer battery, and more particularly to a packaging material for a polymer battery made of a composite aluminum foil and a polymer battery using the packaging material.
【０００２】[0002]
【従来の技術】ポリマー電池は、携帯電話、ノート型パ
ソコンなどの電子機器に使用されているリチウムイオン
二次電池のうち、導電性ポリマーなどの固体、半固体電
解質を用いた電池はポリマー電池と呼ばれており、電解
液としてＰＣ（プロピレンカーボネート）、ＤＥＣ（ジ
エチレンカーボネート）、ＥＣ（エチレンカーボネー
ト）などの非水電解液を用いたリチウムイオン二次電池
に比べて、薄肉化、軽量化の達成が可能で、電解液の液
漏れなどの危険性も少なく安全性の面でも優れていると
いう特徴を有し、今後の発展が期待されている。2. Description of the Related Art Polymer batteries are lithium-ion secondary batteries used in electronic devices such as mobile phones and notebook computers, and batteries using solid or semi-solid electrolytes such as conductive polymers are called polymer batteries. It is called thinner and lighter than lithium ion secondary batteries that use non-aqueous electrolytes such as PC (propylene carbonate), DEC (diethylene carbonate), and EC (ethylene carbonate) as the electrolyte. It is characterized by low risk of electrolyte leakage and excellent safety, and further development is expected.
【０００３】ポリマー電池のケースとしては、従来、複
合アルミニウム箔から形成した包装材料をヒートシール
してなるものが使用されているが、電解質に上記のＰ
Ｃ、ＤＥＣ、ＥＣやγ−ＢＬ（ガンマブチロラクトン）
などの溶剤を含有するものが用いられるため、これらの
溶剤により包装材料のヒートシール強度やラミネート強
度が低下したり、包装材が電解質に溶解して電解質を汚
染したり性能を低下させない耐電解液特性が要求されて
いる。また、電極端子（Ｎｉ、Ａｌ、Ｃｕの極板）との
接着性および密着性が優れており、液漏れなどが生じな
いことも重要である。As a case of a polymer battery, a case obtained by heat-sealing a packaging material formed of a composite aluminum foil is conventionally used.
C, DEC, EC and γ-BL (gamma butyrolactone)
Since these materials contain solvents such as these, these solvents reduce the heat sealing strength and laminating strength of the packaging materials, and the packaging materials dissolve in the electrolyte and do not contaminate the electrolyte and do not lower the performance. Characteristics are required. It is also important that the adhesiveness and adhesion to the electrode terminals (Ni, Al, and Cu electrode plates) are excellent, and that no liquid leakage occurs.
【０００４】上記の要求に答えるポリマー電池用包材と
して、アルミニウム箔／マレイン化ＰＰ（構成Ａ）、ま
たはアルミニウム箔／ヒートラミネーションポリプロピ
レン／マレイン化ＰＰ（構成Ｂ）からなる構成を有する
複合アルミニウム箔が提案されている。（特開平１１−
６７１６６号公報）しかしながら、このポリマー電池用
包材においては、マレイン化ＰＰのコートがグラビアコ
ート（塗工）などにより行われるために、厚い場合でも
実質的には３〜５ｇ／ｍ2 程度（５μｍ厚さ程度まで）
のコート量しか得られず、構成Ａのものでは、電極端子
との間に隙間が生じるおそれがあり、マレイン化ＰＰの
コート量が少ない場合には、使用中に電極とアルミニウ
ム箔との間にスパークが生じることも経験されている。
ロールコートなどでマレイン化ＰＰを厚塗りすると塗布
が不均一になり易い。As a packaging material for a polymer battery meeting the above requirements, a composite aluminum foil having a structure of aluminum foil / maleated PP (structure A) or aluminum foil / heat-laminated polypropylene / maleated PP (structure B) is used. Proposed. (Japanese Patent Laid-Open No. 11-
However, in this polymer battery packaging material, since the maleated PP is coated by gravure coating (coating) or the like, it is substantially 3 to 5 g / m 2 (5 μm Up to thickness)
In the case of the structure A, there is a possibility that a gap may be formed between the electrode terminal and the aluminum foil. Sparks have also been experienced.
When the maleated PP is thickly applied by a roll coat or the like, the application tends to be uneven.
【０００５】構成Ｂのものでは、このような難点はない
が、アルミニウム箔にポリプロピレンをヒートラミネー
トする場合のライン速度が遅く、生産効率が劣りコスト
高となるという問題点がある。また、マレイン化ＰＰは
最外層に設けられ、電解液に対する耐液性を与える役割
の他、電極端子を含めて包材をヒートシールする役割を
も果たすものであるから、耐液性とヒートシール性双方
の安定化の確保のために、ある程度の量、例えば４ｇ／
ｍ2 以上の塗布が必要となる。In the case of the structure B, there is no such a problem, but there is a problem that the line speed when heat-laminating the polypropylene on the aluminum foil is low, the production efficiency is low and the cost is high. Further, the maleated PP is provided on the outermost layer and serves not only to provide liquid resistance to the electrolytic solution but also to heat seal the packaging material including the electrode terminals. In order to ensure the stability of both sexes, a certain amount, for example, 4 g /
m 2 or more is required.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、複合アルミ
ニウム箔からなるポリマー電極用包装材料における上記
従来の問題点を解消するために、上記の特開平１１−６
７１６６号公報に記載される複合アルミニウム箔をベー
スとし、コスト面を考慮して、ポリマー電池用包装材に
要求される特性および生産性と複合アルミニウム箔の層
構成との関係を再検討した結果としてなされたものであ
り、その目的は、耐電解液特性、耐溶剤性をそなえ、ヒ
ートシール性、電極端子との接着性、密着性に優れ、且
つコスト低減を可能とするポリマー電池用包装材料およ
び該包装材料を使用したポリマー電池を提供することに
ある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems in a packaging material for a polymer electrode comprising a composite aluminum foil.
Based on the composite aluminum foil described in US Pat. No. 7166, based on the results of reexamining the relationship between the characteristics and productivity required for the polymer battery packaging material and the layer configuration of the composite aluminum foil in consideration of cost, The purpose is to provide a packaging material for a polymer battery that has electrolytic solution resistance, solvent resistance, heat sealability, adhesion to electrode terminals, excellent adhesion, and enables cost reduction. An object of the present invention is to provide a polymer battery using the packaging material.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めの本発明の請求項１によるポリマー電池用包装材料
は、アルミニウム箔、マレイン化ＰＰ層および押出コー
トポリプロピレン層の順で積層された複合アルミニウム
箔からなることを特徴とする。According to a first aspect of the present invention, there is provided a polymer battery packaging material comprising a laminated aluminum foil, a maleated PP layer, and an extrusion-coated polypropylene layer. It is made of aluminum foil.
【０００８】請求項２によるポリマー電池用包装材料
は、請求項１において、複合アルミニウム箔のアルミニ
ウム箔面に、さらに耐熱性二軸延伸フィルム層を設けた
ことを特徴とする。The packaging material for a polymer battery according to claim 2 is characterized in that, in claim 1, a heat-resistant biaxially stretched film layer is further provided on the aluminum foil surface of the composite aluminum foil.
【０００９】また、請求項３によるポリマー電池用包装
材料は、請求項１〜２において、押出コートポリプロピ
レン層の厚さが１５〜１００μｍであることを特徴と
し、請求項４によるポリマー電池用包装材料は、請求項
１〜３において、複合アルミニウム箔の押出コートポリ
プロピレン層上にさらにマレイン化ＰＰ層を設けたこと
を特徴とする。The packaging material for a polymer battery according to the third aspect is characterized in that the thickness of the extrusion-coated polypropylene layer is 15 to 100 μm in the first to second aspects, and the packaging material for the polymer battery according to the fourth aspect is provided. Is characterized in that, in claims 1 to 3, a maleated PP layer is further provided on the extrusion-coated polypropylene layer of the composite aluminum foil.
【００１０】本発明の請求項５によるポリマー電池は、
請求項２に記載のポリマー電池用包装材料により、電解
質を挟むとともに、電極板の両面にマレイン化ＰＰを被
覆した電極端子をヒートシールしてなることを特徴とす
る。[0010] The polymer battery according to claim 5 of the present invention comprises:
An electrode terminal in which an electrolyte is sandwiched by the packaging material for a polymer battery according to the second aspect and an electrode plate in which both surfaces of an electrode plate are coated with maleated PP is heat-sealed.
【００１１】[0011]
【発明の実施の形態】本発明のポリマー電池用包装材料
においては、図１に示すように、アルミニウム箔３、マ
レイン化ＰＰ層４、押出コートポリプロピレン（以下、
押出コートＰＰ）層５の順に積層された複合アルミニウ
ム箔２により包装材料１を構成する。BEST MODE FOR CARRYING OUT THE INVENTION In a packaging material for a polymer battery according to the present invention, as shown in FIG. 1, an aluminum foil 3, a maleated PP layer 4, and an extrusion-coated polypropylene (hereinafter, referred to as "polypropylene").
The packaging material 1 is composed of the composite aluminum foil 2 laminated in the order of the extrusion coating PP) layer 5.
【００１２】アルミニウム箔３としては、厚さが６〜３
００μｍの純アルミニウム系のアルミニウム箔（ＪＩＳ
Ｈ４１６０ １Ｎ３０など）、Ａｌ−Ｆｅ合金箔など
の調質Ｏ〜Ｈ１８のものが使用される。The aluminum foil 3 has a thickness of 6 to 3 mm.
00μm pure aluminum-based aluminum foil (JIS
H4160 1N30, etc.), and heat-treated O-H18 materials such as Al-Fe alloy foil are used.
【００１３】マレイン化ＰＰ層４は、耐電解液特性、耐
溶剤性の役割を果たすものであり、マレイン化ＰＰのア
ルミニウム箔３面へのコーティングは、とくに限定され
ないが、量産性の観点からはグラビアコートによるのが
好ましい。塗布量は０．１〜８ｇ／ｍ2 、好ましくは
０．５〜３ｇ／ｍ2 であるが、複合アルミニウム箔２に
耐電解液特性、耐溶剤性の機能を持たせることを目的と
する場合には、０．５〜２ｇ／ｍ2 のような少量塗布で
も十分に目的を達成することができる。The maleated PP layer 4 plays a role of electrolyte resistance and solvent resistance. The coating of the maleated PP on the aluminum foil 3 is not particularly limited, but from the viewpoint of mass productivity. It is preferable to use a gravure coat. The coating amount is 0.1 to 8 g / m 2 , preferably 0.5 to 3 g / m 2 , but when the purpose is to provide the composite aluminum foil 2 with the function of electrolytic solution resistance and solvent resistance. The purpose can be sufficiently achieved even by applying a small amount such as 0.5 to 2 g / m 2 .
【００１４】押出コートＰＰ層５は、耐熱ヒートシール
性、電極端子との接着性に優れ、ポリマー電池用包装材
料１に、固体電解質、電極を包み、電極端子を含めて包
装材料をヒートシールためのヒートシール層としての役
割を果たす。押出ＰＰコート層５は、電極端子と接し、
とくに高温環境下では軟らかくなって電極端子の回りに
密着して密封性を保持する。押出コートＰＰ層５は、１
５〜１００μｍ、好ましくは３０〜６０μｍ、さらに好
ましくは４５〜６０μｍ厚さで形成され、この範囲で良
好な接着強度が得られる。押出コートＰＰ層５の厚さが
１５μｍ未満では、電極端子との間に隙間が生じ密封性
が失われることがある。The extruded coat PP layer 5 has excellent heat-resistant heat sealing properties and adhesiveness to electrode terminals, and is used for wrapping a solid electrolyte and electrodes in a polymer battery packaging material 1 and heat-sealing the packaging material including the electrode terminals. Serves as a heat seal layer. The extruded PP coat layer 5 is in contact with the electrode terminal,
Particularly in a high-temperature environment, it becomes soft and closely adheres around the electrode terminals to maintain the sealing property. Extrusion coat PP layer 5
It is formed with a thickness of 5 to 100 μm, preferably 30 to 60 μm, more preferably 45 to 60 μm, and good adhesive strength can be obtained in this range. If the thickness of the extrusion coat PP layer 5 is less than 15 μm, a gap may be formed between the extrusion coat PP layer 5 and the electrode terminal, and the sealing property may be lost.
【００１５】ポリマー電池用包装材料においては、アル
ミニウム箔３の表面に、図１に示すように、さらに延伸
ナイロンフィルムや延伸ポリエチレンテレフタレート
（ポリエステル、以下ＰＥＴ）フィルムなどの耐熱性二
軸延伸フィルム層６（厚さ６〜１００μｍ）を、ウレタ
ン系接着剤などのドライ接着剤７でドライラミネート
し、耐突き破り性を向上させることも行われる。In the packaging material for a polymer battery, as shown in FIG. 1, a heat-resistant biaxially stretched film layer 6 such as a stretched nylon film or a stretched polyethylene terephthalate (polyester, hereinafter referred to as PET) film is formed on the surface of the aluminum foil 3. (Thickness: 6 to 100 μm) is dry-laminated with a dry adhesive 7 such as a urethane-based adhesive to improve puncture resistance.
【００１６】図２に示すように、押出コートＰＰ層５の
外面に、さらにマレイン化ＰＰ層８を設けることによ
り、電極端子との接着性をさらに改善することができ
る。図２に示すポリマー電池用包装材料の構成において
は、マレイン化ＰＰ層４により耐電解液性を持たせ、マ
レイン化ＰＰ層８により電極端子との接着性を高める。
従って、各マレイン化ＰＰ層４、８を形成するためのマ
レイン化ＰＰの塗布量は、０．５〜２ｇ／ｍ2 のように
少なくても足りる。As shown in FIG. 2, by further providing a maleated PP layer 8 on the outer surface of the extrusion-coated PP layer 5, the adhesion to the electrode terminals can be further improved. In the configuration of the packaging material for a polymer battery shown in FIG. 2, the maleated PP layer 4 is provided with an electrolytic solution resistance, and the maleated PP layer 8 enhances the adhesiveness to the electrode terminals.
Therefore, the amount of the maleated PP applied to form the maleated PP layers 4 and 8 may be as small as 0.5 to 2 g / m 2 .
【００１７】本発明のポリマー電池用包装材料の製造に
ついて説明すると、まず、アルミニウム箔を、必要に応
じて脱脂、洗浄、下地処理した後、マレイン化ＰＰ粒子
を分散させたコーティング剤を調製して、アルミニウム
箔面にマレイン化ＰＰをグラビアコートにより塗布し、
１８０〜２５０℃程度の温度で５〜１０秒程度乾燥し
て、アルミニウム箔面上にマレイン化ＰＰ層を形成す
る。The production of the packaging material for a polymer battery of the present invention will be described. First, an aluminum foil is degreased, washed, and ground-treated as necessary, and then a coating agent in which maleated PP particles are dispersed is prepared. , Applying maleated PP by gravure coating to the aluminum foil surface,
Dry at a temperature of about 180 to 250 ° C. for about 5 to 10 seconds to form a maleated PP layer on the aluminum foil surface.
【００１８】つぎに、マレイン化ＰＰ層４への押出コー
トＰＰ層５の形成は、マレイン化ＰＰ層４を積層したア
ルミニウム箔３を巻出しながら、マレイン化ＰＰ層上に
溶融、混練されたポリプロピレンをダイより溶融樹脂の
膜として押し出す、冷却ロールを通して巻き取る通常の
押出ラミネート法により行う。押出ラミネート法によれ
ば、１２０〜２００ｍ／分のライン速度が得られ、高い
生産効率を達成することができる。Next, the extrusion coated PP layer 5 is formed on the maleated PP layer 4 by unrolling the aluminum foil 3 on which the maleated PP layer 4 is laminated while melting and kneading the polypropylene on the maleated PP layer. Is extruded from a die as a molten resin film, and is wound up through a cooling roll by a usual extrusion lamination method. According to the extrusion lamination method, a line speed of 120 to 200 m / min can be obtained, and high production efficiency can be achieved.
【００１９】得られた複合アルミニウム箔２に、必要に
応じて、アルミニウム箔３の外面に、ウレタン系の接着
剤７を介してＰＥＴフィルム層６をドライラミネート
し、さらに押出コートＰＰ層５の外面に、マレイン化Ｐ
Ｐ層８を、上記の方法に従って形成する。If necessary, a PET film layer 6 is dry-laminated on the outer surface of the aluminum foil 3 via a urethane-based adhesive 7 on the obtained composite aluminum foil 2 and, if necessary, the outer surface of the extrusion-coated PP layer 5. And maleinated P
The P layer 8 is formed according to the method described above.
【００２０】本発明によるポリマー電池用包装材料は、
アルミニウム箔、マレイン化ＰＰ層、押出コートＰＰ層
の順で積層した複合アルミニウム箔からなり、マレイン
化ＰＰ層は包装材料に耐電解液特性を与える役割のみを
持ち、電極端子との接着性、ヒートシール性は押出ＰＰ
層が受け持つよう構成したから、マレイン化ＰＰ層は、
マレイン化ＰＰを０．５〜２ｇ／ｍ2 のように少量塗布
することにより形成しても十分に目的を達成することが
でき厚塗りの必要がなく、グラビアコートによって均一
且つ安定した塗布を行うことができるから、作業管理も
容易であり、コスト低減も可能となる。また、押出ＰＰ
層の形成はライン速度を大きくすることができ生産効率
を高めることが可能であるから、製造コストの低減が達
成できる。The packaging material for a polymer battery according to the present invention comprises:
It consists of a composite aluminum foil laminated in the order of an aluminum foil, a maleated PP layer, and an extrusion-coated PP layer. The maleated PP layer has only a role of giving an electrolyte-resistant property to the packaging material, and has an adhesive property with an electrode terminal and heat. Sealability is extruded PP
Because the layer was configured to take charge, the maleated PP layer
Even if it is formed by applying a small amount of maleated PP such as 0.5 to 2 g / m 2 , the purpose can be sufficiently achieved and a thick coating is not required, and uniform and stable coating is performed by gravure coating. Therefore, work management is easy and cost can be reduced. Also, extrusion PP
Since the formation of the layer can increase the line speed and increase the production efficiency, a reduction in manufacturing cost can be achieved.
【００２１】請求項１によるアルミニウム箔、マレイン
化ＰＰ層および押出コートポリプロピレン層の順で積層
された複合アルミニウム箔からなるポリマー電池用包装
材料を使用する場合には、図３に示すように、Ａｌ、Ｃ
ｕまたはＮｉからなる電極板９の両面にマレイン化ＰＰ
層１０を被覆した電極端子１１を適用し、前記３層の包
装材料で電解質を挟むとともに、当該包装材料で電極端
子をヒートシールするのが好ましく、この構成により、
ヒートシール部における包装材料と電極端子の接着強度
を高めることができる。When a packaging material for a polymer battery comprising a composite aluminum foil laminated in the order of the aluminum foil, the maleated PP layer and the extrusion-coated polypropylene layer according to claim 1 is used, as shown in FIG. , C
Maleized PP on both sides of electrode plate 9 made of u or Ni
It is preferable that the electrode terminal 11 coated with the layer 10 is applied, the electrolyte is sandwiched between the three layers of the packaging material, and the electrode terminal is heat-sealed with the packaging material.
The adhesive strength between the packaging material and the electrode terminals in the heat seal portion can be increased.
【００２２】[0022]
【実施例】以下、本発明の実施例を比較例と対比して説
明する。なお、本実施例は、本発明の好ましい一実施態
様を説明するためのものであって、これにより本発明が
制限されるものではない。Hereinafter, examples of the present invention will be described in comparison with comparative examples. It should be noted that the present example is for describing a preferred embodiment of the present invention, and the present invention is not limited thereto.
【００２３】実施例１ アルミニウム箔（ＪＩＳ Ｈ４１６０、１Ｎ３０、調質
Ｏ材、厚さ４０μｍ）に、マレイン化ＰＰをグラビアコ
ートにより塗布（塗布量１ｇ／ｍ2 ）して、マレイン化
ＰＰ層（厚さ１μｍ）を形成し、マレイン化ＰＰ層上に
押出ラミネーション法により押出コートＰＰ層（厚さ５
０μｍ）を形成した。押出ラミネーションにおけるライ
ン速度は１５０ｍ／分であった。さらに、アルミニウム
箔の外面側に、厚さ１２μｍのＰＥＴをドライラミネー
トし、ＰＥＴ層／Ａｌ箔／マレイン化ＰＰ層／押出ＰＰ
層（全体厚さ１０３μｍ）で構成される複合アルミニウ
ム箔からなる包装材料を得た。なお、マレイン化ＰＰの
コーティングにおける乾燥条件は２００℃で１０秒とし
た。Example 1 A maleated PP was applied to an aluminum foil (JIS H4160, 1N30, tempered O material, thickness: 40 μm) by gravure coating (coating amount: 1 g / m 2 ), and a maleated PP layer (thickness: 1 μm), and an extrusion-coated PP layer (thickness: 5 μm) is formed on the maleated PP layer by an extrusion lamination method.
0 μm). The line speed in the extrusion lamination was 150 m / min. Further, PET having a thickness of 12 μm was dry-laminated on the outer surface side of the aluminum foil, and the PET layer / Al foil / maleated PP layer / extruded PP
A packaging material composed of a composite aluminum foil composed of layers (total thickness of 103 μm) was obtained. The drying conditions for the maleated PP coating were 200 ° C. for 10 seconds.
【００２４】比較例１ アルミニウム箔（ＪＩＳ Ｈ４１６０、１Ｎ３０、調質
Ｏ材、厚さ４０μｍ）に、ヒートロールを通じて行うヒ
ートラミネーション法によりポリプロピレン層（厚さ４
０μｍ）を形成した。ヒートラミネーションにおけるラ
イン速度は３０ｍ／分であった。ついで、ポリプロピレ
ン層の上に、マレイン化ＰＰをグラビアコートにより塗
布（塗布量６ｇ／ｍ2 ）して、マレイン化ＰＰ層（厚さ
６μｍ）を形成し、さらに、アルミニウム箔の外面側
に、厚さ１５μｍのＰＥＴをドライラミネートし、ＰＥ
Ｔ層／Ａｌ箔／ヒートラミネーションＰＰ層／マレイン
化ＰＰ層（全体厚さ１０１μｍ）で構成される複合アル
ミニウム箔からなる包装材料を得た。なお、マレイン化
ＰＰのコーティングにおける乾燥条件は、実施例１と同
一とした。Comparative Example 1 A polypropylene layer (thickness 4) was formed on an aluminum foil (JIS H4160, 1N30, tempered O material, thickness 40 μm) by a heat lamination method using a heat roll.
0 μm). The line speed in the heat lamination was 30 m / min. Next, a maleated PP was applied by gravure coating (a coating amount of 6 g / m 2 ) on the polypropylene layer to form a maleated PP layer (thickness: 6 μm). Dry lamination of 15 μm PET, PE
A packaging material comprising a composite aluminum foil composed of a T layer / Al foil / heat lamination PP layer / maleated PP layer (overall thickness: 101 μm) was obtained. The drying conditions for the maleated PP coating were the same as in Example 1.
【００２５】上記の実施例１および比較例１で得られた
包装材料を、実際にポリマー電池用包装材料として使用
したところ、耐溶剤性、ヒートシール性、電極端子との
接着性、電極端子まわりの密封性については、いずれも
同等の優れた性能を示したが、比較例１のものは、実施
例１のものに比べてマレイン化ＰＰ層を厚塗り（塗布量
６ｇ／ｍ2 、厚さ６μｍ）する必要があるためコストを
上昇させ、またそのために、グラビアコートにおける作
業管理が難しく、マレイン化ＰＰの塗布の不均一性に起
因して耐電解液特性が若干劣る場合もあり、さらに、比
較例１のものにおける製造速度は、押出ラミネーション
による実施例１のものに比べて大きな差があるため、比
較例１のものは実施例１のものに比べコスト面で大幅に
劣っている。When the packaging materials obtained in Example 1 and Comparative Example 1 were actually used as a packaging material for a polymer battery, solvent resistance, heat sealability, adhesiveness to electrode terminals, and electrode terminal area All of them exhibited the same excellent sealing performance, but the comparative example 1 had a thicker coating of the maleated PP layer (coating amount 6 g / m 2 , 6 μm), which increases the cost, and therefore, the work management in the gravure coating is difficult, and the non-uniformity of the application of the maleated PP may slightly deteriorate the electrolytic solution resistance. The production speed of the comparative example 1 is significantly different from that of the example 1 due to the extrusion lamination. Therefore, the comparative example 1 is significantly inferior in cost to the example 1.
【００２６】[0026]
【発明の効果】本発明によれば、耐電解液特性、耐溶剤
性をそなえ、ヒートシール性、電極端子との接着性、密
着性に優れるとともに、生産効率が高く、大幅なコスト
低減を達成したポリマー電池用包装材料が提供される。According to the present invention, it has excellent resistance to electrolytes and resistance to solvents, excellent heat sealability, adhesion to electrode terminals and adhesion, high production efficiency, and achieves significant cost reduction. The present invention provides a polymer battery packaging material.
【図１】本発明のポリマー電池用包装材料の一実施例を
示す断面図である。FIG. 1 is a cross-sectional view showing one embodiment of a packaging material for a polymer battery of the present invention.
【図２】本発明のポリマー電池用包装材料の他の実施例
を示す断面図である。FIG. 2 is a cross-sectional view showing another embodiment of the packaging material for a polymer battery of the present invention.
【図３】本発明で使用する電極端子の実施例を示す断面
図である。FIG. 3 is a sectional view showing an embodiment of an electrode terminal used in the present invention.
１ ポリマー電池用包装材料 ２ 複合アルミニウム箔 ３ アルミニウム箔 ４ マレイン化ＰＰ層 ５ 押出コートＰＰ層 ６ 耐熱性二軸延伸フィルム層 ７ ドライ接着剤 ８ マレイン化ＰＰ層 ９ 電極板 10 マレイン化ＰＰ層 11 電極端子 DESCRIPTION OF SYMBOLS 1 Packaging material for polymer batteries 2 Composite aluminum foil 3 Aluminum foil 4 Maleated PP layer 5 Extrusion coated PP layer 6 Heat resistant biaxially stretched film layer 7 Dry adhesive 8 Maleated PP layer 9 Electrode plate 10 Maleated PP layer 11 Electrode Terminal
Claims (5)
リプロピレン層（マレイン化ＰＰ、以下同じ）および押
出コートポリプロピレン層の順で積層された複合アルミ
ニウム箔からなることを特徴とするポリマー電池用包装
材料。1. A packaging material for a polymer battery, comprising a composite aluminum foil laminated in the order of an aluminum foil, a maleic anhydride-modified polypropylene layer (maleated PP, the same applies hereinafter) and an extrusion-coated polypropylene layer.
に耐熱性二軸延伸フィルム層を設けたことを特徴とする
請求項１記載のポリマー電池用包装材料。2. The packaging material for a polymer battery according to claim 1, wherein a heat-resistant biaxially stretched film layer is provided on the aluminum foil surface of the composite aluminum foil.
５〜１００μｍであることを特徴とする請求項１または
２記載のポリマー電池用包装材料。3. The extrusion-coated polypropylene layer has a thickness of 1
The packaging material for a polymer battery according to claim 1, wherein the thickness is 5 to 100 μm.
ロピレン層上にマレイン化ＰＰ層を設けたことを特徴と
する請求項１〜３のいずれかに記載のポリマー電池用包
装材料。4. The packaging material for a polymer battery according to claim 1, wherein a maleated PP layer is provided on the extrusion-coated polypropylene layer of the composite aluminum foil.
料により、電解質を挟むとともに、電極板の両面にマレ
イン化ＰＰを被覆した電極端子をヒートシールしてなる
ことを特徴とするポリマー電池。5. A polymer battery comprising the polymer battery packaging material according to claim 2, wherein an electrolyte is sandwiched, and an electrode terminal having both surfaces of the electrode plate coated with maleated PP is heat-sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27582799A JP4743803B2 (en) | 1999-09-29 | 1999-09-29 | Polymer battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27582799A JP4743803B2 (en) | 1999-09-29 | 1999-09-29 | Polymer battery |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011010718A Division JP5294428B2 (en) | 2011-01-21 | 2011-01-21 | Method for producing polymer battery packaging material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001102011A true JP2001102011A (en) | 2001-04-13 |
| JP4743803B2 JP4743803B2 (en) | 2011-08-10 |
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ID=17560988
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27582799A Expired - Fee Related JP4743803B2 (en) | 1999-09-29 | 1999-09-29 | Polymer battery |
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| Country | Link |
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Cited By (15)
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|---|---|---|---|---|
| WO2002089209A1 (en) * | 2001-04-26 | 2002-11-07 | Sony Corporation | High-frequency module and its manufacturing method |
| WO2003001618A1 (en) * | 2001-06-20 | 2003-01-03 | Dai Nippon Printing Co., Ltd. | Battery-use packing material |
| JP2005343105A (en) * | 2004-06-07 | 2005-12-15 | Sumitomo Light Metal Ind Ltd | Aluminum laminate material |
| WO2007072736A1 (en) * | 2005-12-22 | 2007-06-28 | Showa Denko Packaging Co. | Laminate packing material for battery and laminate battery |
| JP2007173049A (en) * | 2005-12-22 | 2007-07-05 | Sony Corp | Battery laminate exterior material and laminate battery |
| JP2007173050A (en) * | 2005-12-22 | 2007-07-05 | Sony Corp | Battery laminate exterior material and laminate battery |
| CN100346500C (en) * | 2001-06-20 | 2007-10-31 | 大日本印刷株式会社 | Packaging material for battery |
| JP2009283382A (en) * | 2008-05-26 | 2009-12-03 | Showa Denko Packaging Co Ltd | Method for manufacturing for package material of battery case |
| WO2011132545A1 (en) | 2010-04-23 | 2011-10-27 | 大倉工業株式会社 | Outer packaging material for battery or capacitor, and process for production thereof |
| JP2012012088A (en) * | 2010-07-02 | 2012-01-19 | Showa Denko Packaging Co Ltd | Packaging material for molding and manufacturing method of the same |
| JP2013082469A (en) * | 2011-10-07 | 2013-05-09 | Showa Denko Packaging Co Ltd | Packaging material for molding and method for manufacturing the same |
| CN104064695A (en) * | 2014-06-13 | 2014-09-24 | 山东爱通工业机器人科技有限公司 | Automatic pit boring machine for power lithium battery aluminum plastic film |
| KR20160003694A (en) | 2013-05-01 | 2016-01-11 | 오꾸라 고교 가부시키가이샤 | Battery packaging material |
| CN110828709A (en) * | 2018-08-08 | 2020-02-21 | 韩田大学校产学协力团 | Method for manufacturing aluminum soft package film for medium-large secondary battery |
| CN114889247A (en) * | 2022-05-07 | 2022-08-12 | 鼎圭新材料科技(上海)有限公司 | Aluminum foil for packaging high-temperature-resistant battery and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002089209A1 (en) * | 2001-04-26 | 2002-11-07 | Sony Corporation | High-frequency module and its manufacturing method |
| CN100370638C (en) * | 2001-06-20 | 2008-02-20 | 大日本印刷株式会社 | Packaging materials for batteries |
| WO2003001618A1 (en) * | 2001-06-20 | 2003-01-03 | Dai Nippon Printing Co., Ltd. | Battery-use packing material |
| US7041380B2 (en) | 2001-06-20 | 2006-05-09 | Dai Nippon Printing Co., Ltd. | Packaging material for battery |
| EP2378589A1 (en) * | 2001-06-20 | 2011-10-19 | Dai Nippon Printing Co., Ltd. | Packaging material for battery |
| EP2239799A3 (en) * | 2001-06-20 | 2011-01-12 | Dai Nippon Printing Co., Ltd. | Packaging material for battery |
| CN100346500C (en) * | 2001-06-20 | 2007-10-31 | 大日本印刷株式会社 | Packaging material for battery |
| JP2005343105A (en) * | 2004-06-07 | 2005-12-15 | Sumitomo Light Metal Ind Ltd | Aluminum laminate material |
| JP2007173049A (en) * | 2005-12-22 | 2007-07-05 | Sony Corp | Battery laminate exterior material and laminate battery |
| JP2007173050A (en) * | 2005-12-22 | 2007-07-05 | Sony Corp | Battery laminate exterior material and laminate battery |
| WO2007072736A1 (en) * | 2005-12-22 | 2007-06-28 | Showa Denko Packaging Co. | Laminate packing material for battery and laminate battery |
| US8323827B2 (en) | 2005-12-22 | 2012-12-04 | Showa Denko Packaging Co. | Laminate packing material for battery and laminate battery |
| JP2009283382A (en) * | 2008-05-26 | 2009-12-03 | Showa Denko Packaging Co Ltd | Method for manufacturing for package material of battery case |
| WO2011132545A1 (en) | 2010-04-23 | 2011-10-27 | 大倉工業株式会社 | Outer packaging material for battery or capacitor, and process for production thereof |
| JP2012012088A (en) * | 2010-07-02 | 2012-01-19 | Showa Denko Packaging Co Ltd | Packaging material for molding and manufacturing method of the same |
| JP2013082469A (en) * | 2011-10-07 | 2013-05-09 | Showa Denko Packaging Co Ltd | Packaging material for molding and method for manufacturing the same |
| KR20160003694A (en) | 2013-05-01 | 2016-01-11 | 오꾸라 고교 가부시키가이샤 | Battery packaging material |
| CN104064695A (en) * | 2014-06-13 | 2014-09-24 | 山东爱通工业机器人科技有限公司 | Automatic pit boring machine for power lithium battery aluminum plastic film |
| CN110828709A (en) * | 2018-08-08 | 2020-02-21 | 韩田大学校产学协力团 | Method for manufacturing aluminum soft package film for medium-large secondary battery |
| CN110828709B (en) * | 2018-08-08 | 2022-05-27 | 拓普恩西株式会社 | Method for manufacturing aluminum soft package film for medium-large secondary battery |
| CN114889247A (en) * | 2022-05-07 | 2022-08-12 | 鼎圭新材料科技(上海)有限公司 | Aluminum foil for packaging high-temperature-resistant battery and production process thereof |
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